18208688

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{673}}^1$

素因数の和:789

約数の個数: 40

約数和(自身を含む): 37609200

約数和(自身を除く): 19400512

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 89, 152, 178, 304, 356, 673, 712, 1346, 1424, 1691, 2692, 3382, 5384, 6764, 10768, 12787, 13528, 25574, 27056, 51148, 59897, 102296, 119794, 204592, 239588, 479176, 958352, 1138043, 2276086, 4552172, 9104344, 18208688]

約数ペア:

[(1, 18208688), (2, 9104344), (4, 4552172), (8, 2276086), (16, 1138043), (19, 958352), (38, 479176), (76, 239588), (89, 204592), (152, 119794), (178, 102296), (304, 59897), (356, 51148), (673, 27056), (712, 25574), (1346, 13528), (1424, 12787), (1691, 10768), (2692, 6764), (3382, 5384)]